计算物理 ›› 2003, Vol. 20 ›› Issue (3): 226-232.

• 论文 • 上一篇    下一篇

开槽扰流片流动特性研究

张攀峰, 王晋军   

  1. 北京航空航天大学流体力学研究所, 北京 100083
  • 收稿日期:2002-03-04 修回日期:2002-08-29 出版日期:2003-05-25 发布日期:2003-05-25
  • 作者简介:张攀峰(1978-),男,湖北武汉,博士生,从事实验流体力学和工程计算等方面的研究.

Flow Characteristics of Flaps with Slots in Boundary Layers

ZHANG Pan-feng, WANG Jin-jun   

  1. Institute of Fluid Mechanics, Beijing University of Aeronautics and Astronautics, Beijing 100083, China
  • Received:2002-03-04 Revised:2002-08-29 Online:2003-05-25 Published:2003-05-25

摘要: 用标准的k-ε湍流方程结合近壁流动的两层带状模型,在非结构网格上采用SIMPLE算法,对不同开孔度的开槽扰流片流动特性进行了数值模拟,并和测压实验结果进行了比较.结果表明开槽扰流片的流动结构取决于上下两部分流场的相互耦合作用,开孔度η=50%时两个流场互相没有干扰,开孔度η=20%,30%时两个流场相互耦合作用很强,扰流片后有较大的回流区以及较小的湍流动能.

关键词: 扰流片, 槽, 压力分布, 湍流动能, 两层带状模型

Abstract: The flow characteristics of various flaps with slots is studied by solving the Reynolds averaged Navier-Stokes equations with two-layer zonal model,while the pressure distribution is measured by experiments.The results reveal that the flow structure of flaps with slots depends on the interaction of flows around two parts of the flaps with slots.The two flows have no intervention at porosity η=50%;but they interact stronly at η=20%,30%.The circulation zone downstream of the flaps becomes larger and has weaker turbulent intensity.

Key words: flap, slot, pressure distribution, turbulence intensity, two-layer zonal model

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